In a machine that temperature changes from 20 ∘C∘C up to 120 ∘C∘C a tungsten wire...

In a machine that temperature changes from 20 ∘C∘C up to 120 ∘C∘C a tungsten wire filament 15.0 cmcm long with a diameter of 1.30 mmmm will be used. The wire will carry 14.0 AA at all temperatures ( Resistivity of tungsten at 20 ∘C∘C is 5.25×10−8Ω⋅m5.25×10−8Ω⋅m , the temperature coefficient of resistivity at 20 ∘C∘C is 0.0045 ∘C−1∘C−1 )

Calculate the maximum electric field in this filament?

Calculate the resistance of the filament with that field?

Calculate the maximum potential drop over the full length of the filament?

Expert Solution

genius_generous answered 2 years ago

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